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Genetics 'n all


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Posted by Serpwidgets on April 27, 2003 at 20:58:40:

In Reply to: Genetics 'n all posted by sasheena on April 27, 2003 at 18:58:52:

It probably helps that rats and mice had their genomes mapped so thoroughly.

There are no set standard names or symbols for any cornsnake loci or genes or alleles yet, use what you like.

If what you really need is symbols, just use "Am, am" for the amel locus and "An, an" for the Anery locus etc.

To be honest, I absolutely can't stand any of the notation systems used for describing loci or genotypes (the above "paragraph" even gives me to creepy-crawlies) so I don't even care what anyone else uses. I don't want to know about it, or hear about it, or be within 10 light years of it. hehe

The only traits which have been shown to act as alleles are motley and striped, which are recessive to wild type and codominant to each other.

The recessives are:
Amelanistic
Anerythrystic A
Charcoal (Anery B)
Lavender
Sunkissed (Hypo B)
Motley/Stripe

There are some that for the most part act like recessives, but at least in certain bloodlines, it looks like it is possible to make visual distinctions between the het and non-het offspring... IOW, the wild type isn't always completely dominant:
Hypomelanism
Caramel
"Bloodred" (Which is the name applied to both a trait and a selectively-bred morph, joy of joy)
ZigZag/Aztec

There aren't any dominant mutants discovered yet.

There's also no Hypermelanism, hypoerythrism, etc found yet.

Does that help? ;) (I'm NOT going to make up notation, hehe.)


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